Close TCP Port 23 - Telnet 3COM 5500-EI

[FalconSez]

Try:

undo telnet server enable
--
Kindest Regards,

Frankie Cruz
Network Administrator
Lehigh Carbon Community College
4525 Education Park Drive
Schnecksville, PA 18078
610-799-1713
fcruz@lccc.edu

[parnassus]

That looks promising...

[CarolMM]

Thank you very much for your replay. 

It didn´t work though.

[FalconSez]

If you have "protocol inbound ssh" applied at the user interface, telnet
server should no longer apply.

Example:

* user-interface vty 0 4*
* authentication-mode scheme*
* protocol inbound ssh *

This is assuming that you have ssh server enabled



--
Kindest Regards,

Frankie Cruz
Network Administrator
Lehigh Carbon Community College
4525 Education Park Drive
Schnecksville, PA 18078
610-799-1713
fcruz@lccc.edu

[CarolMM]

Thank you for your replay, 

I already tried it. Once I aplied it, it no longer lets connect through Telnet, but if I do a nmap analysis it shows TCP port 23 it is still listening. 

Is there any way to close that port?

Thank you.